Cash on hand?

ANTE

Think of what you might put in before the cards are dealt in poker.

"Cash on hand?" plays on the double meaning of "ante." In poker, the ante is the small amount of money players put in before a hand starts—literally cash on hand at the table. The clue also hints at "ante" sounding like "auntie," but that’s a red herring; the real trick is the gambling term disguised as a question about physical money.